Mark,
Unfortunately, what you describe is typical of most mechanical tachs and
speedo's. If the shudder is excessive, lubricating the cables with a
graphite lubricant (intended for speedometer cables) may help. As a
final resort, you may have to replace the cables and housings.
Joe Curry
Mark S. Lepore, MD wrote:
>
> Listers:
> Another question for the common wisdom.
> Both my speedo and tach needles "jump" while operating. In other words, they
> don't point calmly, but oscillate or vibrate around whichever number they are
> trying to point to. I've noticed that slight manual manipulation of the tach
> cable can either improve or worsen the condition. I've not tried this with
> the speedo, but I know both knurled nuts are very tight on both gauges.
> Any thoughts?
> Sirmoog
--
"If you can't excel with talent, triumph with effort."
-- Dave Weinbaum in National Enquirer
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